Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Combot - The most advanced community management tool for Telegram.
Telegram X - Meet Telegram X for iOS and Android – two new official apps that offer more speed, longer batter life and smooth animations.
Chainfuel for Telegram - A tool to help you manage a telegram community, prevent spam
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Community Bot - Automate your Slack community management